Home / 19,988.65-29,953.81-11,226.07

Finding the Fourth Proportional to 19,988.65, 29,953.81 and 11,226.07

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Solution

The fourth proportional to 19,988.65, 29,953.81 and 11,226.07 is: 16,822.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.65 : 29,953.81 = 11,226.07 : x
  2. Step 2: Convert to fraction form
    19,988.65/29,953.81 = 11,226.07/x
  3. Step 3: Cross multiply
    19,988.65x = 29,953.81 × 11,226.07
  4. Step 4: Simplify right side
    19,988.65x = 336,263,567.83
  5. Step 5: Solve for x
    x = 336,263,567.83/19,988.65
  6. Step 6: Final answer
    x = 16,822.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.